<template>
  <div class="list" ref="wrapper">
	  <div>
		  <div class="area">
			  <div class="title border-topbottom">当前城市</div>
			  <div class="button-list">
				  <div class="button-wrapper">
					  <div class="button">{{this.$store.state.city}}</div>
				  </div>
			  </div>
		  </div>
		  <div class="area">
			  <div class="title border-topbottom">热门城市</div>
			  <div class="button-list">
				  <div
				     class="button-wrapper" 
				     v-for="item of hot" 
				     :key="item.id"
				     @click="handleCityClick(item.name)">
					  <div class="button">{{item.name}}</div>
				  </div>
			  </div>
		  </div>
		  <div class="area" v-for="(item, key) of cities" :key="key" :ref="key">
			  <div class="title border-topbottom">{{key}}</div>
			  <div class="item-list">
				  <div class="item border-bottom" 
					  v-for="innerItem of item" :key="innerItem.id"
					   @click="handleCityClick(innerItem.name)">{{innerItem.name}}</div>
			  </div>
		  </div>
	   </div>
  </div>
</template>

<script>
import Bscroll from 'better-scroll'
export default{
  name:'CityList',
  props: {
	  hot:Array,
	  cities:Object,
	  letter: String
  },
  methods: {
	  handleCityClick (city) {
		  this.$store.commit('changeCity', city)
		  this.$router.push('/')
	  }
  },
  watch: {
	  letter (){
		  if(this.letter) {
			  const element = this.$refs[this.letter][0]
			  this.scroll.scrollToElement(element)
		  }
	  }
  },
  mounted (){
	  this.scroll = new Bscroll(this.$refs.wrapper)
  }
}
</script>


<style lang="stylus" scoped>
@import '~styles/varibles.styl'
.title{
	line-height:27px;
	background:#eee;
	padding-left:10px;
	color:#666;
	font-size:13px;
}
.border-topbottom&:before{
	border-color:#ccc;
}
.border-topbottom&:after{
	border-color:#ccc;
}
.button-list{
	padding:5px 30px 5px 5px;
	overflow:hidden;
}
.button-wrapper{
	width:33.33%;
	float:left;
}
.button{
	text-align:center;
	margin:5px;
	border:1px solid #ccc;
	padding:5px 0;
	border-radius:5px;
}
.item-list .item{
	line-height:38px;
	padding-left:10px;
}
.border-bottom&:before{
	border-color:#ccc;
}
.list{
	position:absolute;
	top:79px;
	left:0;
	bottom:0;
	right:0;
	overflow:hidden;
}
</style>
